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Always Furious. Now Fast.
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Is a blow off valve just a different name for an external wastegate? And also, do any of the major turbo manufacturers use integrated wastegates in the turbos?

Just curious.
 

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They're totally different. A bov releases pressure from the intake and a wastegate releases exhaust gas so you don't overspin the turbine and to control boost. I think most aftermarket places don't use an internal wastegate.
 
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